If -5 is a root of the quadratic equation 2xsquare +px -15 =0 , then p

1.	If -5 is a root of the quadratic equation 2xsquare +px -15 =0 , then p = ??
Answer» If - 5 is root. x = -5 Put value of x in equation => 2 × (-5)^2 + p × (-5) - 15 =0 => 2 × 25 - 5p - 15 = 0 => 50 - 15 - 5p = 0 => 35 - 5p = 0 => 35 = 5p => 35/5 = p => p = 7 p is 7

If -5 is a root of the quadratic equation 2xsquare +px -15 =0 , then p = ??

Answer»

If - 5 is root.

x = -5

Put value of x in equation

=> 2 × (-5)^2 + p × (-5) - 15 =0

=> 2 × 25 - 5p - 15 = 0

=> 50 - 15 - 5p = 0

=> 35 - 5p = 0

=> 35 = 5p

=> 35/5 = p

=> p = 7

p is 7

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If -5 is a root of the quadratic equation 2xsquare +px -15 =0 , then p = ??​

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If -5 is a root of the quadratic equation 2xsquare +px -15 =0 , then p = ??